QuikTap - Refillable 12 oz Co2 Tank for Dispensing Beer From QuikTap Portable Keg Tap 12 oz Refillable Co2 Tank for QuikTap Portable Keg Tap Food Grade - Inside has been cleaned of any debris and oils. Safe for beverage dispensing Contains Enough Pressure to Serve at Least One Standard 15 Gallon Keg. Cheap and Easy to Refill at Your Local Sporting Goods Store, Welding Supply, or Paintball Shop ** Refillable CO2 tanks are shipped empty to comply with shipping safety protocols